class AddEventConfiguration < ActiveRecord::Migration
  def self.up
    add_column :events, :parent_id, :integer
    add_column :events, :calculation_params, :text
    add_column :events, :conversion_params, :text

  end

  def self.down
    remove_column :events, :parent_id
    remove_column :events, :calculation_params
    remove_column :events, :conversion_params
  end
end
